Creative Pasta & Salad Ideas for an Italian-Themed Wedding Meal?

Q: I've been given the task of creating a menu for my sister's upcoming wedding and I want to create a meal that's a little more creative and elegant. It's a low-budget, DIY wedding with a loose Italian theme for the food. I'm looking for seasonal, budget-friendly ideas for a pasta and salad bar to feed 150!

Any ideas beyond, of course, pasta and red sauce or fettuccini Alfredo?